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Blue Yonder
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I applied via Naukri.com and was interviewed before Sep 2020. There were 4 interview rounds.
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A generic swap function swaps two values of any data type.
The function should take two parameters of any data type.
Use a temporary variable to store the value of one parameter.
Assign the value of the second parameter to the first parameter.
Assign the value of the temporary variable to the second parameter.
Search for an element in a rotated sorted linked list.
Find the pivot point where the list is rotated.
Divide the list into two sublists based on the pivot point.
Perform binary search on the appropriate sublist.
Handle edge cases such as empty list and list with only one element.
Search an element in a rotated sorted array
Find the pivot point where the array is rotated
Divide the array into two sub-arrays based on pivot point
Perform binary search on the appropriate sub-array
Repeat until element is found or sub-array size is 1
Find 5 missing numbers in an array of size 95 containing numbers in range 1 to 100.
Create a boolean array of size 100 and mark the present numbers
Iterate through the boolean array and find the missing numbers
Alternatively, use a HashSet to store the present numbers and find the missing ones
Given a Sudoku board, find possible numbers for an empty cell.
Iterate through empty cells and check possible numbers using row, column, and box constraints.
Use a set to keep track of possible numbers for each empty cell.
Return the set of possible numbers for the given empty cell.
Find integer average of 4 unsigned integers without typecasting
Add all the integers and divide by 4
Use bit shifting to divide by 4
Handle overflow by using long long data type
Use unsigned int data type for input
Code to identify 32 bit or 64 bit architecture of a processor
Check if the operating system is 32 bit or 64 bit
If OS is 32 bit, processor is 32 bit
If OS is 64 bit, check if processor supports 64 bit architecture
Use CPUID instruction to check if processor supports 64 bit architecture
Convert binary number to base 64 integer
Divide the binary number into groups of 6 bits
Convert each group of 6 bits to decimal
Map the decimal value to the corresponding base 64 character
Concatenate the base 64 characters to form the final integer
I was interviewed before Dec 2020.
Round duration - 60 minutes
Round difficulty - Easy
This was a technical round. The interviewer asked me some programming based questions and some questions on database management systems.
Given an array ARR
of size N
, your objective is to determine the sum of the largest and smallest elements within the array.
Can you achie...
Find the sum of the largest and smallest elements in an array with the least number of comparisons.
Iterate through the array to find the maximum and minimum elements.
Keep track of the maximum and minimum elements as you iterate.
After iterating, sum up the maximum and minimum elements.
To achieve the task with the least number of comparisons, compare elements in pairs.
Construct a binary tree from a given array called parent
where the parent-child relationship is determined by (PARENT[i], i), indicating that the parent of node ...
Construct a binary tree from a given parent array and perform level-order traversal.
Iterate through the parent array to create the binary tree using a queue data structure.
Keep track of the parent-child relationships and construct the tree accordingly.
Perform level-order traversal to print the nodes in the correct order.
Yes, a unique key can also be a primary key.
A primary key must be unique, but a unique key does not necessarily have to be the primary key.
A table can have multiple unique keys, but only one primary key.
Example: In a table of employees, the employee ID can be a unique key and also the primary key.
Normalized form is better for database design for data integrity and flexibility.
Normalized form reduces data redundancy and improves data integrity.
Normalized form allows for easier data updates and maintenance.
Denormalized form may be more efficient for read-heavy applications with complex queries.
Consider denormalization for performance optimization after thorough analysis.
Example: Normalized form for a customer and...
Round duration - 60 minutes
Round difficulty - Medium
The interviewer had good work experience. She was polite and calm. After brief introduction she straight jumped into my current projects and she covered my entire CV.
Round duration - 45 minutes
Round difficulty - Easy
This was a technical round involving questions on OOPS concepts and puzzles.
There are 204 squares on a chessboard.
The chessboard has 64 squares in total.
Each square can be divided into smaller squares, such as 1x1, 2x2, 3x3, etc.
The total number of squares can be calculated by adding the squares of all sizes together.
C++ is a high-level programming language known for its efficiency, flexibility, and performance.
C++ is an object-oriented language with features like classes, inheritance, and polymorphism.
It allows low-level memory manipulation through pointers.
C++ is used in developing system software, game engines, and high-performance applications.
Deep copy creates a new copy of an object with all nested objects also copied, while shallow copy creates a new copy of an object with references to nested objects.
Deep copy creates a new object and recursively copies all nested objects, resulting in a completely independent copy.
Shallow copy creates a new object but only copies references to nested objects, so changes in nested objects will reflect in both the origina...
Template classes are classes that can work with any data type. Assignment operator can be overloaded to behave differently for different data types.
Template classes allow for writing generic classes that can work with any data type.
Overloading the assignment operator allows for custom behavior based on the data type.
Example: template <class T> class MyClass { T data; public: MyClass& operator=(const T& ot...
Round duration - 30 minutes
Round difficulty - Easy
This was a 30 minute HR round. The interviewer asked me a number of questions to know more about me.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I was interviewed before May 2016.
posted on 30 May 2024
2 dsa which is leetcode easy mostly and also some java related
posted on 6 Mar 2024
I applied via Campus Placement and was interviewed before Mar 2023. There were 2 interview rounds.
Different types of joins in SQL include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
INNER JOIN: Returns rows when there is at least one match in both tables.
LEFT JOIN: Returns all rows from the left table and the matched rows from the right table.
RIGHT JOIN: Returns all rows from the right table and the matched rows from the left table.
FULL JOIN: Returns rows when there is a match in one of the tables.
posted on 8 Mar 2024
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